Image forming apparatus and replacement part used therefor

Abstract

In an image forming apparatus including a periodic replacement part detachably mounted to the apparatus main body, the periodic replacement part is provided with a storage medium storing information on the replacement part. The information stored in the storage medium can at least be read on the main body side of the image forming apparatus using a communication portion communicating through a radio wave.

1. An image forming apparatus, comprising:
 a plurality of periodic replacement parts each including a storage medium that stores information on the replacement part therein; and  
 a main body of said image forming apparatus to which said periodic replacement part is detachably mounted, the main body including a single communication portion;  
 wherein said main body reads the information stored in said storage medium through said single communication portion using a radio wave, and  
 wherein said image forming apparatus has the multiple replacement parts within a range to allow the single communication portion to transmit/receive the radio wave to/from them, and the storage media of at least two replacement parts are communicable with the single communication portion on the apparatus main body side.  
 
     
     
       2. The image forming apparatus according to  claim 1 , wherein said communication portion uses the radio wave having a predetermined wavelength. 
     
     
       3. The image forming apparatus according to  claim 1 , wherein said storage medium of said replacement part has an unused memory region to be writable with information transmitted from said main body side through said communication portion. 
     
     
       4. The image forming apparatus according to  claim 1 , wherein said storage medium of said replacement part includes a rewritable region and an un-rewritable region. 
     
     
       5. The image forming apparatus according to  claim 1 , wherein a memory region of said storage medium of said replacement part allows only writing and reading. 
     
     
       6. The image forming apparatus according to  claim 1 , wherein information originally stored in a memory region of said storage medium of said replacement part is neither rewritable nor erasable. 
     
     
       7. The image forming apparatus according to  claim 1 , wherein said storage medium of said replacement part holds internal information in a coded form according to a prescribed coding method. 
     
     
       8. The image forming apparatus according to  claim 1 , wherein the information stored in said storage medium of said replacement part is used to control the operation of said main body, and the operation of said main body is changed depending upon a kind of said replacement part. 
     
     
       9. The image forming apparatus according to  claim 1 , wherein said communication portion of said main body is integrally provided to a circuit board previously provided at said main body. 
     
     
       10. The image forming apparatus according to  claim 1 , further comprising a moving device that moves said communication portion of said main body to a position communicable with said storage medium of said replacement part. 
     
     
       11. The image forming apparatus according to  claim 1 , further comprising a moving device that moves said replacement parts to a position where said storage medium of said replacement part can communicate with said communication portion of said main body side. 
     
     
       12. The image forming apparatus according to  claim 1 , wherein said communication portion of said apparatus main body side has a communicable range which is set within the outer size of said main body. 
     
     
       13. The image forming apparatus according to  claim 1 , further comprising a control portion notifying an operator of the detection if said communication portion of said main body detects a larger number of the storage media than the number of replacement parts mountable to said image forming apparatus. 
     
     
       14. The image forming apparatus according to  claim 1 , wherein if said communication portion of said main body detects a larger number of the storage media than the number of replacement parts mountable to said image forming apparatus, information in said storage media is not reflected on the control of said main body. 
     
     
       15. The image forming apparatus according to  claim 1 , wherein said storage medium of said replacement part is provided to said replacement part integrally with a label attached to said replacement part. 
     
     
       16. A periodic replacement part configured to be detachably mounted to an image forming apparatus, said image forming apparatus including a plurality of the periodic replacement parts each including a storage medium that stores information on the replacement part therein; and a main body of said image forming apparatus to which said periodic replacement part is detachably mounted, the main body including a single communication portion, wherein said main body reads the information stored in said storage medium through said single communication portion using a radio wave, and wherein said image forming apparatus has the multiple replacement parts within a range to allow the communication portion to transmit/receive the radio wave to/from them, and the storage media of at least two replacement parts are communicable with the single communication portion on the apparatus main body side,
 said replacement part comprising: 
 the storage medium that stores information on said replacement part, and the information stored in said storage medium can be read on said main body by the communication portion communicating through the radio wave.  
 
 
     
     
       17. The replacement part according to  claim 16 , wherein said image forming apparatus further includes a moving device that movably mounts said replacement part to said image forming apparatus, and moves said replacement part to a position where the storage medium of said replacement part can communicate with said communication portion of said main body side. 
     
     
       18. The replacement part according to  claim 16 , wherein information stored in the storage medium of said replacement part is used for controlling the operation of said image forming apparatus, and the operation of said image forming apparatus is changed based on a kind of the replacement part. 
     
     
       19. An image forming apparatus, comprising:
 a plurality of periodic replacement parts each including a storage medium that stores information on the replacement part therein;  
 a main body of said image forming apparatus to which said periodic replacement part is detachably mounted and including a single communication portion, wherein said main body reads the information stored in said storage medium through said single communication portion using a radio wave; and  
 a control portion notifying an operator of the detection if said communication portion of said main body detects a larger number of the storage media than the number of replacement parts mountable to said image forming apparatus.  
 
     
     
       20. An image forming apparatus, comprising:
 a plurality of periodic replacement parts each including a storage medium that stores information on the replacement part therein; and  
 a main body of said image forming apparatus to which said periodic replacement part is detachably mounted and including a single communication portion,  
 wherein said main body reads the information stored in said storage medium through said single communication portion using a radio wave, and  
 wherein if said communication portion of said main body detects a larger number of the storage media than the number of replacement parts mountable to said image forming apparatus, information in said storage media is not reflected on the control of said main body.  
 
     
     
       21. An image forming apparatus main body configured to detachably mount at least two replacement parts, each replacement part including a storage medium storing information regarding the replacement part, the image forming apparatus main body including a single communication portion to communicate with the storage medium,
 wherein the communication portion has a communication range and is configured to be moveable relative to the storage media of the mounted at least two replacement parts so that the storage media are successively positioned within the communication range of the communication portion.  
 
     
     
       22. A wireless communication system provided at an image forming apparatus, comprising a main body and a plurality of periodic replacement parts insertably and removably mounted at the main body, the system comprising:
   at least one main body antenna disposed at a communication portion of the main body; and        antennas attached to the periodic replacement parts,        wherein the antennas are supported by the periodic replacement parts such that coil axes of the antennas are substantially perpendicular to a direction of insertion and removal of the periodic replacement parts into and from the main body, and the main body antenna is supported by the main body such that a coil axis of the main body antenna is substantially parallel with at least one of the coil axes of the antennas.     
     
     
       23. A wireless communication system according to  claim 22 , wherein a plurality of the antennas are disposed facing the main body antenna. 
     
     
       24. A wireless communication system according to  claim 23 , further comprising an antenna selection section which selectively enables communication with any one of the plurality of the antennas. 
     
     
       25. An image forming apparatus, comprising:
   a plurality of periodic replacement parts each including a storage medium, having an antenna, that stores information on the replacement part therein; and        a main body of said image forming apparatus to which said periodic replacement parts are detachably mounted, the main body including at least one communication portion,        wherein said main body reads the information stored in said storage medium through said communication portion and the antenna using radio waves, and        each antenna of the storage medium is attached to a circumferential surface of the respective periodic replacement parts.     
     
     
       26. An image forming apparatus according to  claim 25 , wherein the periodic replacement part is a developer cartridge. 
     
     
       27. An image forming apparatus according to  claim 25 , wherein the antenna faces the main body antenna when communication is carried out between the antenna and the main body antenna. 
     
     
       28. An image forming apparatus, comprising:
   a plurality of periodic replacement parts each including a storage medium, having a coil shaped antenna, that stores information on the replacement part therein; and        a main body of said image forming apparatus to which said periodic replacement part is detachably mounted, the main body including at least one communication portion,        wherein said main body reads the information stored in said storage medium through said communication portion and the coil shaped antenna using radio waves, and        each coil shaped antenna of the storage medium is attached to the respective periodic replacement parts such that a coil axis of the coil shaped antenna is substantially perpendicular to a direction of insertion and removal of the periodic replacement part into and from the main body.     
     
     
       29. An image forming apparatus according to  claim 28 , wherein the periodic replacement part is a developer cartridge. 
     
     
       30. An image forming apparatus according to  claim 28 , wherein the antenna faces the main body antenna when communication is carried out between the antenna and the main body antenna.